I built one last year with a P-80SE just to prove to the powerheads it would work well. Think there is a video on the UF thread somewhere. Enough for a rolling loop....
Partner Claire's UF will have a P90RXi in it and that will have a little more go than the P80SE.
I've flown UF's with P100RX, P-80SE, my 2 year old UF loads with a P-120SX. Friends with EvoJet 90, P-140RX, Hawk 100R. Great model what ever you power it with. Flights from grass with most of those too.

Dw